2015

Step 1				Step 2				Step 3
Get Mean Scale Score from line numbers in this data file.				Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard				Multiply Distance From Standard by proportion of students in grade.
Grade	Line number	Mean Scale Score	-	Scale Score: met min	=	Distance from standard	*	(Students tested in grade	/	Students) tested in school	=	Weighted Distance From Standard
3	1471636	2436	-	2436	=	0	*	(88	/	357)	=	0.0
4	1471639	2441	-	2485	=	-44	*	(86	/	357)	=	-10.59943975
5	1471640	2472	-	2528	=	-56	*	(96	/	357)	=	-15.05882353
6	1471643	2518	-	2552	=	-34	*	(87	/	357)	=	-8.28571425
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Faylane Elementary											-34

2016

Step 1				Step 2				Step 3
Get Mean Scale Score from line numbers in this data file.				Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard				Multiply Distance From Standard by proportion of students in grade.
Grade	Line number	Mean Scale Score	-	Scale Score: met min	=	Distance from standard	*	(Students tested in grade	/	Students) tested in school	=	Weighted Distance From Standard
3	46213	2441	-	2436	=	5	*	(77	/	337)	=	1.14243323
4	46215	2483	-	2485	=	-2	*	(87	/	337)	=	-0.51632047
5	46216	2498	-	2528	=	-30	*	(80	/	337)	=	-7.12166172
6	46219	2523	-	2552	=	-29	*	(93	/	337)	=	-8.00296734
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Faylane Elementary											-14

2017

Step 1				Step 2				Step 3
Get Mean Scale Score from line numbers in this data file.				Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard				Multiply Distance From Standard by proportion of students in grade.
Grade	Line number	Mean Scale Score	-	Scale Score: met min	=	Distance from standard	*	(Students tested in grade	/	Students) tested in school	=	Weighted Distance From Standard
3	47455	2454	-	2436	=	18	*	(84	/	329)	=	4.59574466
4	47457	2480	-	2485	=	-5	*	(67	/	329)	=	-1.01823708
5	47458	2501	-	2528	=	-27	*	(94	/	329)	=	-7.7142857
6	47461	2534	-	2552	=	-18	*	(84	/	329)	=	-4.59574466
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Faylane Elementary											-9

2018

Step 1				Step 2				Step 3
Get Mean Scale Score from line numbers in this data file.				Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard				Multiply Distance From Standard by proportion of students in grade.
Grade	Line number	Mean Scale Score	-	Scale Score: met min	=	Distance from standard	*	(Students tested in grade	/	Students) tested in school	=	Weighted Distance From Standard
3	47465	2456	-	2436	=	20	*	(59	/	309)	=	3.81877022
4	47466	2486	-	2485	=	1	*	(85	/	309)	=	0.27508091
5	47469	2504	-	2528	=	-24	*	(69	/	309)	=	-5.35922328
6	47470	2531	-	2552	=	-21	*	(96	/	309)	=	-6.52427183
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Faylane Elementary											-8

2019

Step 1				Step 2				Step 3
Get Mean Scale Score from line numbers in this data file.				Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard				Multiply Distance From Standard by proportion of students in grade.
Grade	Line number	Mean Scale Score	-	Scale Score: met min	=	Distance from standard	*	(Students tested in grade	/	Students) tested in school	=	Weighted Distance From Standard
3	47644	2473	-	2436	=	37	*	(73	/	296)	=	9.12499998
4	47645	2480	-	2485	=	-5	*	(64	/	296)	=	-1.08108108
5	47646	2520	-	2528	=	-8	*	(88	/	296)	=	-2.37837838
6	47647	2546	-	2552	=	-6	*	(71	/	296)	=	-1.43918918
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Faylane Elementary											4

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-34	-14	-9	-8	4	-61.0	-12.2

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: 26.8

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -51.2

For the lines, you have the data necessary to plot the chart.

Very last step

The percent of students getting a Free or Reduced Price Meal comes from the following sources:

	2015	2016	2017	2018	2019
Percent	71%	66%	67%	67%	66%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file